Some pros: Being able to force social networks to provide me with a physical copy of my data is alone a reason to get an EU citizenship. I don't even use the social networks, i just demand my data every 3 months to FB, Tinder and Linkedin to punish them for being so aggressive in their spamming and tracking.
Being safe from throttling, censorship and all the nice stuff that US ISPs are going to feed american citizens with is also pretty nice.
Also very efficiently getting my money back when companies try to scam me.